Another New Polished Lab Grown Record, as Gem Breaks 30-ct Barrier

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Another New Polished Lab Grown Record, as Gem Breaks 30-ct Barrier
Pic shows Pride of India, the world's biggest polished lab grown diamond.

A new record for the world’s largest polished lab grown diamond has been set by Indian company Ethereal Green Diamond LLP, with a 30.18-carat stone.

It snatches the title from Greenlab, another Indian company, which announced just over two weeks ago that it had produced a marquise step cut 27.27-carat diamond.

Both stones were certified by IGI. The 30.18-carat emerald-cut gem, called Pride of India, was graded as H color, VS2 clarity.

It was grown in four weeks by the CVD (chemical vapor deposition) process, and is currently on display at the JCK show (booth 8135).

The record for a polished lab grown was also broken in February, with a 16.41-carat princess-cut diamond (G/VVS2) produced by Shanghai Zhengshi Technology, in China.

Before that it was broken in August 2021 by a14.60-ct F/VVS2 grown by Ethereal Green Diamond, in Mumbai, India.

The record before that was held by a 12.75-ct F/VVS2, also grown by Shanghai Zhengshi.

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